package com.zang.structure;

import java.util.*;

/**
 * @author gs
 * @date 2022/6/29 1:34 PM
 */
public class StructureMain {

    private static final Vector<Object> v = new Vector<>();
    private static final Stack<Object> s = new Stack<>();
    private static final BitSet b = new BitSet();
    private static final Hashtable<String, Object> h = new Hashtable<>();
    private static final Dictionary<String, Object> d = new Hashtable<>();
    private static final Properties p = new Properties();


}
